Not that I understand all the math and such, but the Suma makes sense to me in that it uses a 15'' woofer and a 15'' WG for the CD.. So the 416 being 16'', a 16'' WG for the CD might be worth a go, and mate quite well if done right? I suppose the original M19 xover would not apply anymore either? So me thinks unless someone in the know wants to re-invent the M19? cough*GM *cough , what I didn't say anything lol..

Besides the M19 and those 212 drivers, I'm also really considering doing the Baszilla with the upgrade G2 ribbon , fostex 208sigma and Eminence Definimax 4015LF driver, just for easier diy that has already been worked out etc.. All these three systems minus building materials, are all in the same price ballpark etc..

Something tells me though, a reworked 19 would be just fabo, so I'll keep on researching lol